| /* { dg-do compile } */ |
| /* { dg-options "-O2 -std=c++11" } */ |
| #include <array> |
| |
| static constexpr int NBR_SHIFT = 4; |
| |
| static constexpr int MAXBOARDSIZE = 25; |
| |
| static constexpr int MAXSQ = ((MAXBOARDSIZE + 2) * (MAXBOARDSIZE + 2)); |
| |
| enum square_t : char { |
| BLACK = 0, WHITE = 1, EMPTY = 2, INVAL = 3 |
| }; |
| |
| const std::array<int, 2> s_eyemask = { |
| 4 * (1 << (NBR_SHIFT * BLACK)), |
| 4 * (1 << (NBR_SHIFT * WHITE)) |
| }; |
| |
| /* counts of neighboring stones */ |
| std::array<unsigned short, MAXSQ> m_neighbours; |
| |
| int is_eye(const int color, const int i) { |
| /* check for 4 neighbors of the same color */ |
| int ownsurrounded = (m_neighbours[i] & s_eyemask[color]); |
| |
| return ownsurrounded; |
| } |
| |
| /* { dg-final { scan-assembler "s_eyemask" } } */ |
